Abstract: Complex matrix derivatives play an important role in matrix optimization, since they form a theoretical basis for the Karush-Kuhn-Tucker (KKT) conditions associated with matrix variables. We ...

Morin, L.R.M. (2026) Conjecture on Cosmological Redshift: Action Instead of Velocity, No Need for Dark Energy. Journal of ...

The NFL playoffs are nearly here. Ahead of Week 17's Sunday slate of games, 12 of the 14 postseason spots have been clinched. Only a few other fanbases outside of those dozen franchises have a chance ...

The 2025 NFL season is entering its final turn. Teams are fighting for playoff places at the top of the leaderboard. All-important byes in the first round are on the line. The even tighter area ...

'Tis the season for holiday cheer, gifts and time spent with loved ones and football. Fans of all franchises may have woken up to gifts showing off their favorite team. For fans of nearly half the ...

Holiday shopping has changed a lot over the years. In the past, people would actually go to stores in search of gifts – walking around the mall or scanning the shelves at whatever brick-and-mortar ...

I did not try to be a mother to them because they had the best mother they could have.” Addressing her equation with Vinod Khanna’s first wife, Geetanjali Khanna, Kavita described it as respectful and ...

Today is a good day for potheads, and a great one for the nation’s state-regulated marijuana businesses. In a historic move, the federal government will reclassify cannabis to a more lenient category.